Zheng-Zhu Liu, Yuan-Fang Gong, Min-Shan Feng, Wen-Jin Zhu, Ling-Xin Duan, Mu-Xiang Ge, Yong-Mei Su and Jun-Sheng Zhao
Journal of Animal and Veterinary Advances 11 ( 7 ): 1000 - 1006 , 2012